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What value of c makes x2 − 24x + c a perfect square trinomial?

−144
−48
48
144

Sagot :

Expert-Verified Answer

The given trinomial is x² - 24x + c and we have to find the value of c for which the given trinomial is a perfect square trinomial. x² - 24x + 144 = (x - 12)² which is a perfect square. Therefore for c = 144 trinomial is a perfect square.